Doorcheck



Nov. 15, 1927. 1,649,339

- J. M CONLEY OOOOOOO CK NNNNNN OR JM Conley Patented Nov. 15, 1927.

UNITED STATS 1,6493% PATENT OFFICE.

JOHN M. CONLEY, 0F STOCKTON, CALIFORNIA.

DOORCI-IECK.

Application filed April 5, 1926. Serial No. 99,716.

This invention relates to improvements in door checks and particularlyto a type adapted to be used in connection with spring hinge screendoors and the like.

The principal object of my invention 1s to provide a device for thepurpose which will efi ectually check and cushion the closing movementof the door, so that the slamming of the door against its jamb withtheaccompanying noise and jarring 1S eliminated.

Another object of the invention is to construct the device in such amanner thatit may be installed either on the door or on its frame, atany suitable point along the top or along the sides of the same oppositeto the hinges, as may be desired.

A further object of the invention is to.

produce a simple and inexpensive device and yet one which will beexceedingly effective for the purpose for which it is designed.

These objects I accomplish by means of such structure and relativearrangement of parts as will fully appear by a perusal of the followingspecification and claims.

In the drawings similar characters of reference indicate correspondingparts in the several views:

Fig. 1 is a front view of the preferred form. of check device asinstalled.

Fig. 2 is a side elevation of the device as detached.

Fig. 3 is a side elevation of a modified form of the device.

Referring now more particularly to the characters of reference on thedrawings, and particularly at present to Figs. 1 and 2, my improved doorcheck comprises a flat plate 1 adapted to be attached by screws 2 or thelike, either to the door frame 3 adjacent the door 4 or to the dooradjacent the frame. If the plate is placed on the frame it is on thatside toward which the door opens. If placed on the door the plate islocated on that side thereof opposite to the opening movement of thedoor. It is preferably mounted, however, on the frame, at such a heightas to be out of the way.

Projecting outwardly from the plate and attached thereto at one end is ashort helical coil 5 of spring wire. The outer end of the coil is bentto extend longitudinallyof the plate and substantially parallel theretoto form a stem 6 on which is turnably mounted a ball 7, the ball beingpreferably of soft solid rubber. The ball is of such a size as to proect considerablybeyond the plane of both side edges of the plate, andthe stem 6 1s sodisposed relative to the plate that the ball is normallyspaced some distance from the plane of the back face of the plate, whichis abutted against the frame or door. It will therefore be seen that thespring mounting of the ball permits the same to resiliently yield bothtransversely of the plate as well as toward the same.

lVhen the device is installed one edge of the plate is located adjacentone edge of the frame 3 so that the ball overhangsthe path of movementof the adjacent edge of the door. lVhen the door is opened the ball isrotated by engagement with the door, and at the same time is movedlaterally so that the edge of the door may pass thereby. The springmounting. of the ball then restores the latter to its normal overhangingposition. When the door is released to cause its spring hinges to closethe same, the door first contacts with the ball with a sudden shock.This sudden engagement of the door with the ball will positively causethe door to rebound somewhat due to the resilient cushion action of theball itself, the latter being also deflected toward the door frame whenthus engaged. With the subsequent closing movement of the door from itsrebound position, the ball of course will be engaged with a lessershock, and the result is that the ball rotates and at the same timemoves to one side so that the door will move gently to its fully closedposition.

In the type of device shown in Fig. 3 the stem 6 which supports the ball7* is a plain length of spring wire, being merely bent at its upper endas at 8 to extend to the plate 1*. The operation of this form of deviceis the same as that described however, since the stem 6 can deflect bothtransversely of the plate and toward the same.

The only restricting condition necessary in both forms of the device isthat the spring wire shall have a resistance to lateral movement lessthan that of the strength of the springs acting on the door to close thesame. The ball projecting laterally beyond both side edges of the plate,the latter may be installed in connection with either right or left handdoors.

From the foregoing description it will be readily seen that I haveproduced such a device as substantially fulfills the objects of theinvention as set forthherein.

While this specification sets forth in detail the present and preferredconstruction of the device, still in practice such deviations from suchdetail may be resorted to as do not form a departure from the spirit ofthe invention, as defined by the appended claims.

Having thus described my invention what I claim as new and useful anddesire to secure by Letters Patent is:

1. A door check comprising a resilient ball, a stem on which the ball ismounted, a plate for attachi'nent to a door frame disposed insubstantially parallel relation to the stem, and a helical. springbetween the upper end of the stem and the plate; the aXis of said coillying in a plane at right angles to the plane of the plate.

2. A door check comprising a member for attachment to a door frame,spring element secured to and projecting outwardly from the member, acushioning element, and connecting means between the outer end of thespring and cushioning element arranged to maintain the latter to oneside of the plane of the spring.

3. A door check comprising a member for a tachment to a door frame, aspring element secured to and projecting outwardly from the member, acushioning element, and connecting means between the outer end of thespring and cushioning element arranged to maintain the latter to oneside of the plane of the spring and away from the frame, and permittingthe cushioning element to move both parallel to and toward the frame.

A. A door check comprising a member for attachment to a door frame, aspring element secured to and projecting outwardly from the member, acushioning element, and connecting means between the outer end of thespring and cushioning element arranged to maintain the latter to oneside of the plane of the spring, said spring elementand connecting meansbeing integrally formed.

5. A door check comprising a member for attachment to a door frame, acoil spring secured at one end to and projecting outwardly from themember, a stem projecting from the outer end of the spring substantially at right angles to the axis thereof, and a cushioning elementmounted on the outer end.

In testimony whereof I affix my signature.

JOHN M. CONLEY.

